Window-screen.



B. R. MOCOLLOM.

- WINDOW SCREEN.

APPLICATION FILED JUNE 28, 1910.

Patented Feb.6,1912.

coLumnA PLANQGRAPH CO-,WASHXNUTON, D. c.

UNITED STATES PATENT OFFICE.

BURTON R. MCCOLLOM, 0F FENTON, MICHIGAN, ASSIGNOR TO THE A. J. PHILLIPSCOMPANY, OF FEN'ION, MICHIGAN, A CORPORATION OF MICHIGAN.

WINDOW-SCREEN.

.T 0 all whom it may concern:

Be it known that I, BURTON R. MoCoL- LOM, citizen of the United States,residing at Fenton, in the county of Genesee and State of Michigan, haveinvented certain new and useful Improvements in Window- Screens, ofwhich the following is a specification.

This invention relates to window screens of the extensible type, that isa screen made up of a plurality of sections having a slidableinterlocking connection with one another whereby the screen is adaptedfor use in connection with windows of varying widths.

The main object of the invention is to provide an improved screen of thecharacter just stated with novel means of connection between theslid-able parts, with the result that the screen is more cheaplyconstructed and rendered more eflicient in operation and devoid of thefaulty binding action of the parts in operation, due largely to theswelling, splitting or warping of the usual wood make-up of the screensections.

More particularly the invention includes two or more sections the framepart of which is conveniently of wood with a telescoping interlockingconnection between the sections, the connection including an improvedtype of angled metallic strip secured in a novel manner to the side ofone section extending substantially throughout the length thereof, andhaving a slidable interlocking connection with the edge of the othersection.

The invention also includes other improvements, and novel detalls 1n theconstruction and arrangement of the several parts, to be moreparticularly referred to herein after in the detailed description whichfor a clear understanding of the invention should be read in connectionwith the accompanying drawings forming a part hereof and wherein I haveshown for the purpose of illustration a preferred embodiment of theinvention.

In the drawings: Figure 1 is a front elevation of the screen sect-ionsslidably interlocked, Fig. 2 is an end view of one section, Fig. 3 is aperspective view of one corner of the screen with parts cut away for thepurpose of clearness, Fig. 4 is a section on the line mm of Fig. 1, Fig.5 is a section on the line yy of Fig. 1, Fig. 6 is an end viewSpecification of Letters Patent.

Application filed June 28, 1910.

Patented Feb. 6, 1912.

Serial No. 569,412.

cut away of that section of the screen to the left of Fig. 1.

Again referring to the drawings wherein like reference characters referto corresponding parts throughout the several views I have shown for thepurpose of illustration the screen in two sections namely A and B. Thesection A comprises a side or end strip 1 and a superimposed strip 2secured in any desired manner as by tacks or nails 3 so as to supporttherebetween one edge of the screening 4. The top and bottom framesections comprise conveniently single strips 5 having a slot 6 extendinglongitudinally thereof for the reception of the top and bottom edges ofthe screening 4 which lat ter is secured by tacks or the like 7. Thesect-ion 1 of the end frame has a recess 8 adjacent its opposite endsand the section 2 an alined recess 9 the said recesses being adapted toreceive tongues 10 formed by slotting the ends of the top and bottomsections 5, said slotted portion fitting over the tongue formed by therecess 9 in the part- 2. The side, top and bottom sections are securedtogether at the corners where interlocked by tacks or the like.Extending longit-udinally of the top and bottom sections 5 is a slot orsaw-cut 10 the outer edge of the inner wall surrounding said slot beingpositioned at a point slightly below the outer edge of the other wall ofthe slot for a purpose to be hereinafter explained.

The section B comprises an end frame made up of strips 11 and 12superimposed and secured to one another by tacks or the like 13 toretain therebetween the edge of the screening 14. Said end frameconnects with the top and bottom frames 15 at the corners, saidconnection being formed as follows: The sections 11' and 12 haverecessed portions 11 and 12 adapted for the reception ofprojectingtongues 16 formed by grooving the end of the top and bottom parts 15 asshown at 15 It is noted that the top and bottom of the screen 14 isfitted i n grooved portions 14 of the top and bottom frame 15 and heldin place by suitable tacks or the like. Extending longitudinally of theinner faces of each of the top and bottom frames 15 adjacent the outeredges thereof is a groove or saw-out 17 and adapted to be secured insaid groove is one flange 18 of a metallic strip substantially L- shapedin cross section, the other flange 18 being unsecured and adapted toslidably engage in the grooved portion 10 of the top and bottom sectionsof the frame A.

l The angled bar is preferably of thin met-a1 adapted to be bent asshown, and the flange 18 is secured in position through the mediumofnails, brads or the like 19, which latter may be applied by anysuitable nailing machine, whereby all the nails may be driven at onetime. It will be noted that the flange 18 of the metallic strip engagesthe top and bottom frames 15 at a pointwithin the exposed edges thereofand that said flange will likewise be positioned below the exposed edgesof the cooperating top and bot-tom frames 5 by reason of the factthat'the inner wall surrounding the grooves of the top and bottom frames 5 isrelatively shorter than the opposed wall of said grooves. In this way itwill be noted that the metallic interlocking members offer noprotuberance beyond the exposed edges of either the top and bottomframes of the respective sections A and B. In this connection, it isnoted that the part 1 of the section A is provided with overhangingflanges 1 fitting a reduced portion in the interlocked ends 5, theoverhanging flange being adapted to constitute in effect a continuationof the end of the part 2 of said end frame. In the same way the endframe member 11 has overhanging flanges 11 adapted to flt over a reducedportion 11 in the side of the tongues formed at the end of the top andbottom frame members 15. This particular interlocking connection formedat the corners of the screen sect-ions affords a very substantial andsolid support for the screen at its ends or corners, and said ends willbe in line with the exposed edges of the top and bottom frames.

It will be observed that the flange 18 of the metallic strip'has arather loose connection with the groove of the top and bottom frames ofthe section A and the parts are so arranged asto permit of warping orswelling of the wooden strips, it being borne in mind that the framesections are conveniently constructed of wood. This loose connection isalso aided by the fact that the flange 18 of the metallic strip does notextend to the base of the groove in the top and bottom frames of thesection A, with the resultant play.

Suitable brace members extend between the top and bottom frames of eachsection ad jacent the unconnected ends thereof, the said laterally fromtheir connection with the screenings, the off set portions being adaptedto contact with the screen of the opposite section and afford a closedjoint, and the off set flanges of the respective bracing membersconstituting stops and abutments for limiting the extension movement andpreventing separation of the parts.

What I claim is:

1. An extensible screen comprising frame sections, one of said sectionshaving a groove in its upper edge and the other section having a groovein its side spaced from its edge, and a metallic strip substantiallyL-shaped in cross section secured in one of said grooves and having aloose engagement with the other groove whereby the sections are slidablyinterlocked, and whereby the edges of the strip are inclosed andprotected by the surrounding walls.

2. An extensible screen comprising frame sections, one of said sectionshaving a groove in its upper edge and the other section having a groovein its side spaced from its edge, and a metallic strip substantiallyL-shaped in cross section secured in one of said grooves and having aloose engagement with the other groove whereby the sections are slidablyinterlocked, the angled strip when in place being co-extensive with oneof said sections and positioned below the exposed outer edges of thesections.

3. In an extensible screen, the combination of wood frame sections, onesection having a groove in its upper and lower edges intermediate theopposite surface of said sections, and a second section having ametallic strip secured to the upper and lower sides of the said secondsection at a pointspaced from the edges thereof and co-extensivetherewith,

andsaid metallic strips having an angled BURTON R. McOOLLOM.

Witnesses:

EFFIE M. BISHOP, G. B. PATE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Ifatents.

' Washington, D. C.

